... alkalinity,hygroscopicity and corrosiveeness. Molecular Formular: caustic soCharacteristics: white flakes with strong alkalinity,hygroscopicity and corrosiveeness.Molecular Formular: NaOH specification:ItemsIndexNaOH ... fat-refining,etc.Executed standard: GB209-2006Packing:25kgs plastic woven bags lined with polythenebags,inside with plastic coating bags. caustic soda c43